Chat Story Studio is an Android app for designing FICTIONAL messaging scenes and exporting them as high-resolution PNG images. It is a creative mockup tool used for film and video production, social content, education, comedy sketches, UI design mockups and presentations. The user picks a visual template (four original bubble styles: Bubble, Chat, Direct, Classic SMS - all originally designed by us, they are NOT clones of any real messaging product and carry no third-party trademarks), edits the contact name, avatar letter, status-bar time and messages, adds message types (text, time divider, typing indicator, photo placeholder, voice note), reactions and delivery states, changes theme (light/dark), wallpaper and bubble colour, and then exports either the visible screen or the entire conversation as a single PNG. Everything happens on-device. The app makes clear in an onboarding screen, an About screen and in the store listing that the content is purely fictional and must not be used to impersonate real people, defraud or mislead anyone. MONETIZATION: no advertising of any kind. A single auto-renewing subscription, "Premium", billed weekly through Google Play Billing (USD 1.99 per week, no free trial), removes the small "Made with Chat Story Studio" watermark from exports and unlocks HD export plus the premium templates, wallpapers and bubble colours. Subscription management and cancellation happen entirely in the Google Play Store. There are NO user accounts, NO login, NO registration. The app requires the INTERNET permission only so Google Play Billing can verify the subscription and so a small remote configuration file can be fetched; it does not require camera, microphone, contacts or location. Exported images are saved by the user through the system download/share mechanism.